Custom Packs

40L Curve – Custom Pack

CUSTOM PACK LEAD TIME IS 21 WEEKS. Updated: December 14, 2020
(1 customer review)

40L Curve


  • 40L body plus an additional 10+ liters of external pockets totaling 50L of pack space
  • Designed to comfortably carry around 20 LBS. With hip belt around 25 LBS.
  • 3.25″ wide S-shaped shoulder straps constructed of 1/4″ spacer mesh and 3/8″ close cell foam
  • Side compression with lineloc 3 adjusters
  • 4 trekking pole loops (includes 4 each of 12″ shock cords with mini cord locks)
  • Top buckle roll top closure with 2 KAMsnaps
  • Adjustable flat bottom side pockets with drain hole. Each pocket fits 2 1L smartwater bottles securely. Pockets adjust with shock cord and mini cord locks.
  • 2 1” loops for attaching a removable hip belt or fanny pack to. ONLY applies to packs without a padded hip belt.
  • Dual adjust sternum strap
  • All internal seams sealed with Dyneema® seam tape
  • Long shoulder straps are for a chest size greater than 42″


  • 15/26 Oz. | 426/738 Grams (weight will vary due to torso size and hip belt size)
  • Bottom circumference: 33”
  • Top circumference: 38”
  • Pack height when fully unrolled: 38”
  • Back of pack: 11.5


  • Body: CT5K.18/WOV.32C (2.92 Oz. Dyneema®)
  • Bottom: Black CT9K.18/WOV.6 (5.0 Oz. Dyneema®)
  • Shoulder straps: 210D Gridstop with Dyneema®
  • Front pocket: 4 way stretch Lycra mesh
  • Spandex/Nylon mesh
  • 1/4″ 3D Spacer mesh
  • 1/4″ close cell foam
  • 3/8″ close cell foam


Hip belt pockets can be found here 

Fanny packs can be found here

1″ removable hip belt can be found here


Side Pocket Material *
Torso Size *
Shoulder Straps *
Shoulder Strap Pockets *
Hip Belt *
Top Strap *
Other Options
+ $7.50
+ $10.00
+ $5.00
+ $2.00
+ $5.00
+ $5.00
Torso Sizing Reviews Gallery

1 review for 40L Curve – Custom Pack

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  1. Daniel Barnhardt

    I just want to start out with the performance of this pack is spot on. I ordered this pack December of 2019 and could not wait to try it out. After many weekend trips and two section hikes of the Appalachian Trail this year, I wanted to share my thoughts on this pack. I ordered the 40L Curve in Dyneema Black with Gridstop Black side pockets. These side pockets are big and can hold (2) 1-liter bottles with no problem. I thought this was going to be an issue but ended up loving these large side pockets and how easy it is to get the bottles in/out with the pack still on your back (saving time of not having to take your pack off). I added the shoulder strap pockets and these are another feature that is worth the for the pair. I used one with a small 500ml water bottle and the other one is use for my phone. These still have room at the bottom for a snack or any other small item you need quick access too. I added the top “Y” strap that secured my sit pad, or jacket during the day. The hip belt was outstanding with its 5 point strap system. This really lets you adjust your hip belt to fit your waist when carrying heavier loads. The area where this pack stands out is that it’s simplicity in it’s build and construction. I carried this pack in six days of rain and it never leaked or soaked through. I would not say it waterproof but it’s pretty close. I truly would recommend this pack to anyone looking for a Dyneema pack that needs to carry more than 25 lbs.

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Choosing the Right Pack:

Torso Sizing:

Hip Belt Size

Below you will find a list of sizing for our hip belts. The first measurement (the absolute minimum) is the total length of foam and clip. The second measurement is the maximum the straps will extend to. Using a measuring device, pull it around your back at the level of your iliac crest and connect it in front of you. This will be your hip belt size. Using this pack for a thru-hike? Please that weight loss into consideration when selecting your hip belt size.

Small Hip Belt - 25" of foam and a total of 32" of adjustability.

Medium Hip Belt - 28" of foam and a total of 38" of adjustability

Large Hip Belt - 33" of foam and a total of 44 " of adjustability

X Large Hip Belt - 40" of foam and a total of 50" of adjustability

Torso Size Info

All packs are built to your specific torso. To find your torso length you will need to find your C7 vertebrae and your iliac crest/hip shelf and measure the distance between them. Still need help finding your torso? Check out this video

Packs without a hip belt will measure from the bottom of the pack to where the shoulder straps are sewn in. This is the same for packs with a 1″ removable hip belt or fanny pack.

Packs with a padded hip belt will measure from the center of the hip belt to where the straps are sewn in. If you choose to have load lifters then your pack will measure from center of hip belt to the load lifters.